CVE-2018-4850 - Vulnerability Details - OpenCVE

A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart.

No CVSS v4.0

No CVSS v3.1

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Vendors	Products
Siemens	Simatic S7-400 Simatic S7-400 Firmware Simatic S7-400h Simatic S7-400h Firmware

Configuration 1 [-]

AND

cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:simatic_s7-400h:-:*:*:*:*:*:*:*

No data.

References

Link	Providers
http://www.securityfocus.com/bid/104217
https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf
https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications

History

No history.

MITRE

Status: PUBLISHED

Assigner: siemens

Published: 2018-05-16T17:00:00Z

Updated: 2024-09-16T22:46:02.128Z

Reserved: 2018-01-02T00:00:00

Link: CVE-2018-4850

Vulnrichment

No data.

NVD

Status : Modified

Published: 2018-05-16T17:29:00.387

Modified: 2024-11-21T04:07:35.003

Link: CVE-2018-4850

Redhat

No data.

{"containers": {"cna": {"affected": [{"product": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below", "vendor": "Siemens AG", "versions": [{"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions"}, {"status": "affected", "version": "SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2"}, {"status": "affected", "version": "SIMATIC S7-400H CPU hardware version 4.5 and below : All versions"}]}], "datePublic": "2018-05-15T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20: Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2018-05-22T09:57:01", "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "shortName": "siemens"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/104217"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "productcert@siemens.com", "DATE_PUBLIC": "2018-05-15T00:00:00", "ID": "CVE-2018-4850", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below, SIMATIC S7-400 (incl. F) CPU hardware version 5.0, SIMATIC S7-400H CPU hardware version 4.5 and below", "version": {"version_data": [{"version_value": "SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below : All versions"}, {"version_value": "SIMATIC S7-400 (incl. F) CPU hardware version 5.0 : All firmware versions < V5.2"}, {"version_value": "SIMATIC S7-400H CPU hardware version 4.5 and below : All versions"}]}}]}, "vendor_name": "Siemens AG"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-20: Improper Input Validation"}]}]}, "references": {"reference_data": [{"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf", "refsource": "CONFIRM", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "refsource": "BID", "url": "http://www.securityfocus.com/bid/104217"}, {"name": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications", "refsource": "CONFIRM", "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-05T05:18:26.561Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"name": "104217", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/104217"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}]}]}, "cveMetadata": {"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77", "assignerShortName": "siemens", "cveId": "CVE-2018-4850", "datePublished": "2018-05-16T17:00:00Z", "dateReserved": "2018-01-02T00:00:00", "dateUpdated": "2024-09-16T22:46:02.128Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "3F8B29A7-5912-4815-B1DA-595A980ED365", "versionEndIncluding": "4.0", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*", "matchCriteriaId": "8F97B67B-4516-4AD9-B33C-7F480EE0DB4D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "A4C0C1ED-74B7-4E4B-B982-062176B7DA2D", "versionEndExcluding": "5.2", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400:-:*:*:*:*:*:*:*", "matchCriteriaId": "8F97B67B-4516-4AD9-B33C-7F480EE0DB4D", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:siemens:simatic_s7-400h_firmware:*:*:*:*:*:*:*:*", "matchCriteriaId": "F150F79A-3843-4A31-8343-75DAF186030F", "versionEndIncluding": "4.5", "vulnerable": true}], "negate": false, "operator": "OR"}, {"cpeMatch": [{"criteria": "cpe:2.3:h:siemens:simatic_s7-400h:-:*:*:*:*:*:*:*", "matchCriteriaId": "1D1CCAFD-1D34-4893-9B3E-76CAD323179A", "vulnerable": false}], "negate": false, "operator": "OR"}], "operator": "AND"}], "descriptions": [{"lang": "en", "value": "A vulnerability has been identified in SIMATIC S7-400 (incl. F) CPU hardware version 4.0 and below (All versions), SIMATIC S7-400 (incl. F) CPU hardware version 5.0 (All firmware versions < V5.2), SIMATIC S7-400H CPU hardware version 4.5 and below (All versions). The affected CPUs improperly validate S7 communication packets which could cause a Denial-of-Service condition of the CPU. The CPU will remain in DEFECT mode until manual restart."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en SIMATIC S7-400 (incl. F) CPU en versiones de hardware 4.0 y anteriores (todas las versiones), SIMATIC S7-400 (incl. F) CPU en versiones de hardware 5.0 (todas las versiones anteriores a la V5.2), SIMATIC S7-400H CPU en versiones de hardware 4.5 y anteriores (todas las versiones). Las CPU afectadas validan incorrectamente los paquetes de comunicaci\u00f3n S7 que podr\u00edan provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en la CPU. La CPU continuar\u00e1 en modo DEFECT hasta que se reinicie manualmente."}], "id": "CVE-2018-4850", "lastModified": "2024-11-21T04:07:35.003", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-05-16T17:29:00.387", "references": [{"source": "productcert@siemens.com", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104217"}, {"source": "productcert@siemens.com", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"source": "productcert@siemens.com", "tags": ["Vendor Advisory"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/104217"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-914382.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.siemens.com/global/en/home/products/services/cert.html#SecurityPublications"}], "sourceIdentifier": "productcert@siemens.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "productcert@siemens.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}